Home / 31,386.79-47,087.43-9,201.88

Finding the Fourth Proportional to 31,386.79, 47,087.43 and 9,201.88

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Solution

The fourth proportional to 31,386.79, 47,087.43 and 9,201.88 is: 13,804.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.79 : 47,087.43 = 9,201.88 : x
  2. Step 2: Convert to fraction form
    31,386.79/47,087.43 = 9,201.88/x
  3. Step 3: Cross multiply
    31,386.79x = 47,087.43 × 9,201.88
  4. Step 4: Simplify right side
    31,386.79x = 433,292,880.37
  5. Step 5: Solve for x
    x = 433,292,880.37/31,386.79
  6. Step 6: Final answer
    x = 13,804.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.